/*
* Ext GWT 2.2.0 - Ext for GWT
* Copyright(c) 2007-2010, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
package com.extjs.gxt.ui.client.widget.form;
import com.extjs.gxt.ui.client.event.ComponentEvent;
import com.extjs.gxt.ui.client.widget.BoxComponent;
import com.extjs.gxt.ui.client.widget.Component;
import com.extjs.gxt.ui.client.widget.ComponentHelper;
import com.extjs.gxt.ui.client.widget.LayoutContainer;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.Widget;
/**
* Allows any widget to be used in a <code>Formlayout</code>.
*
* <p/>
* By default, the wrapped widget will not be resized when the field is resized.
* This can be changed by calling {@link #setResizeWidget(boolean)}.
*/
public class AdapterField extends Field<Object> {
/**
* The wrapped widget.
*/
protected Widget widget;
private boolean resizeWidget;
/**
* Creates a new adapter field.
*
* @param widget the widget to be wrapped
*/
public AdapterField(Widget widget) {
this.widget = widget;
}
@Override
public Element getElement() {
// we need this because of lazy rendering
return widget.getElement();
}
/**
* Returns the wrapped widget.
*
* @return the widget
*/
public Widget getWidget() {
return widget;
}
@Override
public boolean isAttached() {
if (widget != null) {
return widget.isAttached();
}
return false;
}
/**
* Returns true if the wrapped widget is being resized.
*
* @return true is resizing is enabled
*/
public boolean isResizeWidget() {
return resizeWidget;
}
@Override
public boolean isValid(boolean silent) {
return true;
}
@Override
public void onBrowserEvent(Event event) {
// Fire any handler added to the AdapterField itself.
super.onBrowserEvent(event);
// Delegate events to the widget.
widget.onBrowserEvent(event);
}
/**
* True to resize the wrapped widget when the field is resized (defaults to
* false).
*
* @param resizeWidget true to resize the wrapped widget
*/
public void setResizeWidget(boolean resizeWidget) {
this.resizeWidget = resizeWidget;
}
@Override
public boolean validate(boolean preventMark) {
return true;
}
@Override
protected void onAttach() {
ComponentHelper.doAttach(widget);
DOM.setEventListener(getElement(), this);
onLoad();
}
@Override
protected void onBlur(ComponentEvent ce) {
}
@Override
protected void onDetach() {
try {
onUnload();
} finally {
ComponentHelper.doDetach(widget);
}
onDetachHelper();
}
@Override
protected void onDisable() {
super.onDisable();
if (widget instanceof Component) {
((Component) widget).disable();
} else {
DOM.setElementPropertyBoolean(widget.getElement(), "disabled", true);
}
}
@Override
protected void onEnable() {
super.onEnable();
if (widget instanceof Component) {
((Component) widget).enable();
} else {
DOM.setElementPropertyBoolean(widget.getElement(), "disabled", false);
}
}
@Override
protected void onFocus(ComponentEvent ce) {
}
@Override
protected void onRender(Element target, int index) {
if (widget instanceof Component) {
Component c = (Component) widget;
if (!c.isRendered()) {
c.render(target, index);
}
}
setElement(widget.getElement(), target, index);
if (widget instanceof LayoutContainer) {
((LayoutContainer) widget).layout();
}
}
@Override
protected void onResize(int width, int height) {
super.onResize(width, height);
if (resizeWidget) {
if (widget instanceof BoxComponent) {
((BoxComponent) widget).setSize(width, height);
}
}
}
@Override
protected boolean validateValue(String value) {
return true;
}
}